Sewing machine



FIG. 1 is a front elevation of the sewing machine showing our new design;

FIG. 2 is a rear elevation of the sewing machine;

FIG. 3 is a side elevation of the sewing machine taken from the left-hand side of FIG. 1;

FIG. 4 is a side elevation of the sewing machine taken from the right-hand side of FIG. 1;

FIG. 5 is a plan view of the sewing machine;

FIG. 6 is an underside plan view of the sewing machine; and,

FIG. 7 is a front perspective view of the sewing machine. 

The ornamental design for a sewing machine, as shown. 